Improvement in ooulter-holdee



gotten tette getest @High Letters Pate-nt No. 75,237-, dated March 10, 1868.

IMPROVEMENT IN COULTER-HOLDER.

@tige Stimuli nfnnh tu in time Eaters ntmt mit making wt nf tlg: sums.

TO ALL WHOM IT MAY CONCERN:

Be it known'that I, JEFFERSON AUeHn, of Dayton, in the-county of Montgomery, in the State of Ohio, have invented a. new and improved Coulter-Holder; and I'do hereby declare that the following is a full and exact .description thereof', reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in casting tivo circular plates, the inner surfaces near the edges being serrated, one plate being attached toa plough-beam, the other having projections, between which rests the coulter or cutter the Whole being held together by a. holt; and thus "constructed, the cutter is adjustable to any i desired position.

To enable others skilled in theyart to inake and use my'invention, I will proceed to describe its construction and .operation i v Thegure represents Ithe holder as attached to a plough-beam. v

A represents a section of a plough-beam, to which the inner plate may be bolted. or, as the bolte passes through the beam, Aprojections at m m would be a sufficient fastening.

The coulter-holder consists oi' two circular plates C of cast iron, the inner surfaces of which are serrated*` or have corresponding projections and cavities and the external plate has projections x, between which the coulter rests. The bolt e passes through the beam, the`centre ofthe plates, and through a slotted orifice within the coulter B, andthus holds the cutter in the position in which it maybe placed. The nut at is screwed down on to the washer o, and by unscrewing this nut, theexterual plate is withdrawn from the inner, and the outer plate can then be moved to another position, carrying with it the cutter.

What I claim asmy invention, and desire to secure by Letters Patent, is-

The combination Yof the plates or disks C, eoulter B, beam A, and bolt e, substantially as described, and for the purpose specified.

JEFFERSON AUGHE.

Witnesses:

ALcE Aucun, Taos. D. MITCHELL. 

